Why we have to use natural things, Because we are the nature, we are the part of the nature.
When nothing on the earth, there is the earth who given birth to all the species like us, that means we are created by the mother earth and mother earth is the mixer of all the natural things.
Our human body is made up of Natural things like water and all the materials that are available in our surroundings.
We depend on nature for our better health for organic growth but we use Chemical products that are harmful on some reasons.
When we use Chemical products for any problem occurs in body that causes side effects on our body, if we stop using them sometimes the problem return again. But when we use natural products that dont have any side effects on our body sometimesit stops the problem permanently.
Like patanjali a Ayurvedic brand which uses natural things to create its products.